Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from GB28720/77Aexternal-prioritypatent/GB1586302A/en
Application filed by Kellie & Sons LtdfiledCriticalKellie & Sons Ltd
Priority to DK124179ApriorityCriticalpatent/DK124179A/da
Publication of DK124179ApublicationCriticalpatent/DK124179A/da